{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T18:58:49Z","timestamp":1790881129348,"version":"4.1.0"},"reference-count":55,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"6819","funder":[{"DOI":"10.13039\/501100000780","name":"European Commission","doi-asserted-by":"publisher","award":["[IR0000016, ID D2B8D520]"],"award-info":[{"award-number":["[IR0000016, ID D2B8D520]"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100021856","name":"Ministero dell\u2019Universit\u00e0 e della Ricerca","doi-asserted-by":"publisher","award":["PE0000023-NQSTI"],"award-info":[{"award-number":["PE0000023-NQSTI"]}],"id":[{"id":"10.13039\/501100021856","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Science"],"published-print":{"date-parts":[[2026,10,1]]},"abstract":"<jats:p>Stationary entanglement between the motion of macroscopic objects and light is a long-standing goal of quantum optomechanics, with implications for both fundamental tests of quantum physics and emerging quantum technologies. We report the generation of quantum entanglement between the center-of-mass motion of a nanosphere levitated in an optical tweezer inside an optical cavity and the electromagnetic field. Using heterodyne detection, we reconstructed the full set of optomechanical correlations and observed a violation of separability bounds between the mechanical motion and a propagating optical mode, demonstrating the distribution of nonclassical correlations beyond the interaction region. The entanglement was generated at room temperature and remained robust over a broad range of parameters. Our results establish levitated optomechanical systems as a platform for continuous-variable quantum communication and for tests of macroscopic quantum physics.<\/jats:p>","DOI":"10.1126\/science.aeh1375","type":"journal-article","created":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T18:00:47Z","timestamp":1790877647000},"page":"113-117","update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":0,"title":["Stationary entanglement of a levitated oscillator with an optical field"],"prefix":"10.1126","volume":"394","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-5174-8206","authenticated-orcid":true,"given":"Q.","family":"Deplano","sequence":"first","affiliation":[{"name":"Dipartimento di Fisica e Astronomia, Universit\u00e0 di Firenze, via Sansone 1, Sesto Fiorentino (FI), Italy."},{"name":"INFN, Sezione di Firenze, via Sansone 1, Sesto Fiorentino (FI), Italy."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9705-697X","authenticated-orcid":true,"given":"A.","family":"Pontin","sequence":"additional","affiliation":[{"name":"CNR-INO, largo Enrico Fermi 6, Firenze, Italy."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1532-9584","authenticated-orcid":true,"given":"F.","family":"Marino","sequence":"additional","affiliation":[{"name":"INFN, Sezione di Firenze, via Sansone 1, Sesto Fiorentino (FI), Italy."},{"name":"CNR-INO, largo Enrico Fermi 6, Firenze, Italy."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8227-124X","authenticated-orcid":true,"given":"F.","family":"Marin","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica e Astronomia, Universit\u00e0 di Firenze, via Sansone 1, Sesto Fiorentino (FI), Italy."},{"name":"INFN, Sezione di Firenze, via Sansone 1, Sesto Fiorentino 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